667734122467 has 2 divisors, whose sum is σ = 667734122468. Its totient is φ = 667734122466.

The previous prime is 667734122459. The next prime is 667734122519. The reversal of 667734122467 is 764221437766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667734122467 - 2³ = 667734122459 is a prime.

It is not a weakly prime, because it can be changed into another prime (667734122417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333867061233 + 333867061234.

It is an arithmetic number, because the mean of its divisors is an integer number (333867061234).

Almost surely, 2^667734122467 is an apocalyptic number.

667734122467 is a deficient number, since it is larger than the sum of its proper divisors (1).

667734122467 is an equidigital number, since it uses as much as digits as its factorization.

667734122467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 55.

The spelling of 667734122467 in words is "six hundred sixty-seven billion, seven hundred thirty-four million, one hundred twenty-two thousand, four hundred sixty-seven".